const moduleA = {
	state: () => ({
		countA: 0
	}),
	mutations: {
		increment (state) {
			// 这里的 `state` 对象是模块的局部状态
			state.countA++;
		}
	},

	getters: {
		doubleCount (state) {
			return state.countA * 2;
		}
	}
};
export default moduleA;
